More Thundery Showers Expected in the Next Fortnight

Near normal rainfall for November 2015


Singapore, 16 November 2015 – In the next fortnight, Inter-Monsoon conditions are expected to prevail, and low level winds are forecast to be predominantly light and variable in direction.

2. During the outlook period, more rainfall can be expected compared to the first half of November 2015. Thundery showers are forecast mostly in the afternoon on 6 to 8 days. The showers may be heavy at times, especially when there is convergence of winds coupled with strong solar heating of land areas. The maximum daily temperature is forecast to be between 32 and 33 degrees Celsius. .

3. Based on long-term statistics, November is the second wettest month in the year after December. Rainfall for November 2015 is likely to be near normal.

Review of 1 – 15 November 2015

4. Inter-Monsoon conditions prevailed over Singapore in the first fortnight of November 2015, with low level winds generally light and variable in direction.

5. During the review period, Singapore experienced moderate to heavy thundery showers mostly in the afternoon due to the light wind conditions coupled with strong heating of land areas during the day. The showers were heaviest on 7 November 2015, where the highest total daily rainfall recorded was 62.4mm in the Jurong area. There were a few warm days where the highest daily maximum temperature recorded ranged between 34.1 and 34.9 degrees Celsius. On a few rain days, the lowest daily minimum temperature recorded was between 23.2 and 23.9 degrees Celsius.

6. Most parts of Singapore received below average rainfall during the first fortnight of November 2015. Less than 20mm rainfall (85 per cent below average) was recorded over the eastern part of Singapore around Changi. Rainfall was highest over the central part of the island around Lower Peirce Reservoir where 140 mm to 170 mm (0 to 25 per cent above average) of rain was recorded.